now set your denominator and numerator equal to 0
and you get c equals -2 and 0
Now test a value to the left of -2 on the number line, test a value between -2 and 0, and then test a value to the right of 0 into the inequality
which makes the inequality true
which makes the inequality false
Which makes the inequality true
set your numerator and denominator equal to 0 again and you get c = 0
Now test a value to the left of o and to the right of zero
which is true
which is false.
Now putting all this you notice the inequality of
and overlap so
is your answer.